Solved
Annotation: Add views
Hi~
In 13.1a version it conveniently to display one viewport to preview select view you want to add.
But in 19.0 version this feature is disappeared.
It there setting to set the feature work?
Thanks.
If you right click in the 3d viewport, you can select the view you would like to see.
Do this before you click the check boxes for the view names.